Improvement in low-water indicators



F. S. BARUS.

Low Water Indicator.

.Patented July. 13, 1869.

llll'illllllllll/lll/ll FREDERICK s. Banus, or NEW YORK, N. Yg

Letters Patent No. 92,564,6Zated July 13, 1869.

IMPROVEMENT IN LOW-WATER INDICATORS.

The Schedule referred to in these Letters Patent and making part of theeamo.

To all whom tt may concern Be it known that I, FREDERICK S. BARUs, ofthe city, county, and State of New York,have invented a -new andimproved Low-Vater Detector for Steam- Boilers; and I do hereby declarethat the following is a full, clear, and exact description of the same,refer: ence being had to the accompanyin f drawings, which fbrm part oi'this specification, and in which- `Figure l. represents a plan view of alow-water dctector constructed according to my invention;

Figure 2, a similar view thereof, with the upper cap removed Figure 3represents a vertical section of the apparatus, illustrating theinterior of the' same while the water in the boiler is at the properstage; and

Figure 4 is a similar view of thev apparatus, illustrating its operationwhen the water is at low sta-ge.

Similar letters ot' reference indicate corresponding parts in thes'everal figures.

This apparatus consists of an elevated chamber, kept filled, by thepressure of steam, with water from the boiler, while the water is ataproper level within the latter, and containing a bucket or open-mouthedvessel, in which water is trapped in such a manner, and which is soconnected with the valve, providing for the escape ofthe steam, by whichthe lowness ofthe water is to be detected, that when the Waterhasreturned ti'om the Chamber to the boiler, on l that in the boilersinking below the desired level, the weight of the water in the saidbucket will produce the opening ot' the said valve, and cause thelowness of Water to be detected.

Referring to the accompanying drawings- L represents a portion of asteam-boiler. (')n't-he top of this boiler, and securely attachedthereto, is a receptacle or chamber, H.

Said cylinder or chamber H communicates with the interior of the boilerL, by means of pipes, D and K, in the manner as shown, and is provided,in its top, with an outlet-pipe, u, which may connectA with analarm-whistle, F, for sounding the same, or with a pipe, (l, foroperating a feed-pump, or with both.

At or near the lower end of the said'outlet-pipe 'u is fitted a rotaryvalve-plug or cork, N, upon the projecting ends of which are arrangedlevers, S S, one of them being allowed to tuin loosely the1eon,while theother, n'tting tightly,^causes, by its turning, also the turning ofthesaid cock.

Upon thelong ends of the said levers S S'are carried weights, E E, forthe purpose of closing the said cock, and keeping it closed untilover-balanced by a heavier weight at the opposite ends of the saidlevers.

At the shorter ends of said levers S S are hinged connecting-rmls fr c'.

To the opposite or lower endsof said connecting-rods r o', is suspendeda cylindrically-Ibrmod bucket or openmouthed receptacle, g, as shown intig. 3,'so that the depression or settling down of said receptacle fromany cause will turn the levers S S on their pivots, and tllereby openthe cock N, as shown in fig. 4..

The lower end oi' the pipe Dis made to extend downward within the boilerL, to a level with the waterline at which the alarm or signal isdesigned to be given, while the corresponding end of the pipe K is madeto extend some little distance lower down, as shown, so that while thewater is at the proper stage, as in iig. 3, it is forced, by the`pressure of steam, up through the pipes D and' K, filling thecylindrical chamber H, and the smaller receptacle or bucket y containedtherein.

W'hen the water in the boiler gets below the level ofthe lower ond ofthe pipe D, the steam enters into said pipe, and forces the watercontained in the chamber H back into the boiler, through the tube K, andsupplies its place therein. The wat-er contained in the smallerreceptacle heilig still retained therein, causes the ovcrbalancing ofthe weights E E, and the consequent opening ofthe cock N, as shown iniig. 4, whereupon an alarm is sounded by the whistle F, or motion givento the feed-pump, or both, as may be desired.

The inner receptacle or bucket gis or maybe peribrated at its bottomwith an opening, j, for the purpose of allowing the gradual discharge ofits contents, thereby providing for the ultimate over-balancing 0f thesame by the weights .E l-),.and the consequent closing 0f the cock N.

Wha-t I claim as my invent-ion, and desire to secure by Letters Patent,is-

The combination and arrangement of the bucket g, vessel H, and weightsE, whereby to operate the cock N, by means substantially as shown anddescribed,` and in the mannerset folth. l Y

F. S. BARUS.

Witnesses:

FEED. HAYNns, J. W. leones.

